Debt

9 Months Ended

Sep. 30, 2019

Components of Debt



(In millions)	September 30, 2019			December 31, 2018
2018 U.S. dollar term loan, net of unamortized debt issuance costs of $7.4 (2018—$8.7)	$	933.1		$	938.9
5.125% senior notes due 2021, net of unamortized debt issuance costs of $3.0 (2018—$4.2)	697.0			695.8
5.625% senior notes due 2024, net of unamortized debt issuance costs of $2.6 (2018—$3.0)	297.4			297.0
Debt payable to unconsolidated affiliate	48.2			48.1
Other borrowings	6.5			3.5
Total debt	1,982.2			1,983.3
Less debt payable within one year	22.9			22.3
Debt payable after one year	$	1,959.3		$	1,961.0
Weighted average interest rates on total debt	3.8		%	3.9		%

See Note 4 for a discussion of the fair value of Grace’s debt.

Grace also maintains a $400 million revolving credit facility. As of September 30, 2019, the available credit under this facility was reduced to $371.1 million by outstanding letters of credit.

The principal maturities of debt outstanding at September 30, 2019, were as follows:



	(In millions)
2019	$	8.1
2020	20.1
2021	715.8
2022	18.0
2023	17.0
Thereafter	1,203.2
Total debt	$	1,982.2